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[請益] 功率電晶體是否可以雙向電流導通?

[ Electronics ]43 留言, 推噓總分: +18

作者: koop - 發表於 2017/07/19 17:13(6年前)

27^F推yudofu: 兩個MOS背靠背叫做ideal diode，這是非常常見的東西07/20 21:12

[請益] battery life time cal issue

[ Electronics ]7 留言, 推噓總分: +3

作者: stevenlin08 - 發表於 2017/07/12 23:04(6年前)

2^F推yudofu: 一、電池有自放電二、放電電流大小會影響mAh的值，不是標07/12 23:29

3^F→yudofu: 220任何電流都是22007/12 23:29

[問題] BJT的規格書（specification)

[ Electronics ]15 留言, 推噓總分: +9

作者: barabara - 發表於 2017/07/06 17:56(6年前)

8^F推yudofu: eBay上有人在賣，也有到台灣，只是F2N開頭3904真的資訊很07/07 08:23

9^F→yudofu: 少，不知道會不會只是某家的2N3904而已07/07 08:24

[請益] 電容式按鍵請教

[ Electronics ]2 留言, 推噓總分: +2

作者: poiuyao - 發表於 2017/07/03 23:25(6年前)

2^F推yudofu: 看ic的輸出是哪一種，不是每個都是可以直接拉地07/04 22:06

[問題] 電感元件儲能問題

[ Electronics ]13 留言, 推噓總分: +6

作者: ropeter88528 - 發表於 2017/06/28 15:24(6年前)

11^F推yudofu: 如果時間很短，能量累積不多的話可以用水泥電阻06/30 22:13

Re: [問題] 求救!!寫不出I2C我就要走路了

[ Electronics ]24 留言, 推噓總分: +8

作者: zzss2003 - 發表於 2017/05/31 10:33(7年前)

16^F推yudofu: http://tinyurl.com/yad24ljq 這裡有教你如何用I2C跟SPI06/02 22:33

17^F→yudofu: 讀且EEPROM的application note06/02 22:34

18^F→yudofu: http://tinyurl.com/y8sk753o 這裡有I2C的source code06/02 22:34

19^F→yudofu: 奇怪，人家現成寫好好你送你不要、要從protocol開始硬幹。06/02 22:35

20^F→yudofu: 我們是社會人士，不是培養實力的學生，有問題先上網站找文06/02 22:36

21^F→yudofu: 件是基本常識吧？先趕快copy回來加進去改再說。06/02 22:36

[問題] 請求前輩給予經驗協助

[ Electronics ]13 留言, 推噓總分: +7

作者: u92202 - 發表於 2017/05/30 14:04(7年前)

10^F推yudofu: 你的5v是充電用的，肯定天生就有上限，你不如放買變壓器從05/30 22:58

11^F→yudofu: 電池轉05/30 22:58

[問題] 這是什麼電線

[ Electronics ]10 留言, 推噓總分: +5

作者: pig40104tony - 發表於 2017/04/30 21:46(7年前)

5^F推yudofu: 外面股數多是因為內正外負，外面的地附加遮蔽的效果04/30 23:22

[問題] 請問上件後GND與其它腳位間冒火花問題

[ Electronics ]21 留言, 推噓總分: +10

作者: ccbruce - 發表於 2017/04/29 20:36(7年前)

4^F推yudofu: 電路板空版先量一下吧，所謂正常工作可能已經過熱了04/29 20:46

[請益] 怎麼把這個零件焊下來消失

[ Electronics ]39 留言, 推噓總分: +12

作者: kafsu - 發表於 2017/04/28 08:14(7年前)

4^F推yudofu: 防焊膠帶貼住其他地方04/28 09:43

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